Researchers at the University of Rochester and RIT have developed the Rochester Quantum Network (RoQNET), an 11-mile-long quantum communication system using photons transmitted over fiber-optic cables, which could enhance secure communications and enable new quantum technologies. The system leverages integrated photonic chips and aims to connect various research facilities, advancing scalable and cost-effective quantum networking.
Researchers have achieved a breakthrough in quantum teleportation by successfully demonstrating a Star Trek-style 'teleportation' of images without physically sending any information between the sender and receiver. Using a nonlinear optical detector, the team was able to remove the need for additional entangled photons, allowing for information to be sent without any physical transfer. This method has advantages in terms of information security, as no information is physically sent and interception is fruitless. However, there is a risk of cloning the original information. With further improvements, this technology could pave the way for teleportation of entire images or even people in the future.
Researchers have demonstrated the teleportation-like transport of "patterns" of light across a network using quantum communication. This breakthrough allows for the secure transmission of images without physically sending them, paving the way for a quantum network capable of handling high-dimensional entangled states. The team used a nonlinear optical detector to achieve this, eliminating the need for additional photons. The research opens up possibilities for practical applications, such as secure communication between customers and banks, and further advancements in nonlinear quantum optics.
Researchers at the Institute of Science and Technology Austria (ISTA) have achieved the first-ever entanglement of microwave and optical photons, a significant step towards building a quantum network. Entangling photons of vastly different energy scales opens up possibilities for scaling up quantum hardware, interconnecting quantum computing platforms, and enabling quantum-enhanced remote sensing applications. The researchers used an electro-optic device to split an optical photon into entangled optical and microwave photons, overcoming the challenge of the large energy difference between the two. This breakthrough paves the way for the development of modular quantum computers with multiple separately cooled processor nodes, addressing the cooling limitations of superconducting qubits.
